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maw [93]
3 years ago
12

PLEASE HELP FAST please

Mathematics
1 answer:
IRINA_888 [86]3 years ago
4 0

Answer:

889 hours.

Step-by-step explanation:

Divide $7,993 by $3, you get a decimal so you increase it to the next hour so you can have all the needed money.

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What is the formula for the area A of a circle in terms of the radius r ?
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Answer:

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\pi r^{2}

\pi =3.14159265359

1) Multiply pi by the radius squared

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3 years ago
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In a class of students, the following data table summarizes how many students passed a test and complete the homework due the da
Alexxandr [17]

20 / 27 is the probability that a student chosen randomly from the class passed the test or completed the homework.

<u>Step-by-step explanation:</u>

To find the probability that a student chosen randomly from the class passed the test or complete the homework :

Let us take,

  • Event A ⇒ a student chosen randomly from the class passed the test
  • Event B ⇒ a student chosen randomly from the class complete the homework

We need to find out P (A or B) which is given by the formula,

⇒ P (A or B) = P(A) + P(B) - P(A∪B)

<u>From the given table of data,</u>

  • The total number of students in the class = 27 students.
  • The no.of students passed the test ⇒ 15+3 = 18 students.

P(A) = No.of students passed / Total students in the class

P(A) ⇒ 18 / 27

  • The no.of students completed the homework ⇒ 15+2 = 17 students.

P(B) = No.of students completed the homework / Total students in the class

P(B) ⇒ 17 / 27

  • The no.of students who passes the test and completed the homework = 15 students.

P(A∪B) = No.of students both passes and completes the homework / Total

P(A∪B) ⇒ 15 / 27

Therefore, to find out the P (A or B) :

⇒ P(A) + P(B) - P(A∪B)

⇒ (18 / 27) + (17 / 27) - (15 / 27)

⇒ 20 / 27

∴ The P (A or B) is 20/27.

7 0
3 years ago
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Gwar [14]

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d.

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3) to check the given point (-3;8) of the y=2x+14; ⇒ 8=8.

4) correct answer is d. y=2x+14.

6 0
2 years ago
The figure below shows two pair of congruent triangles.
cestrela7 [59]

Answer:

DFE

Step-by-step explanation:

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3 years ago
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You would need 6 gallons of water if there are 24 students 
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